{"uid":"cap_emArbQaiG58vEAW87VXQa","slug":"crypto-fear-greed-index-api-9c831d92","name":"Crypto Fear & Greed Index API","description":"Crypto Fear & Greed index (0=extreme fear, 100=extreme greed) with weekly trend — a contrarian market-sentiment signal. Send {}.","url":"https://x402-services-production.up.railway.app/api/predict/feargreed","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"_":{"type":"string","description":"No parameters"}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_c06MBrNqvb-h0XnemvpcT","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the current Crypto Fear & Greed Index score (0=extreme fear, 100=extreme greed) with weekly trend data as a contrarian market-sentiment signal","exampleAgentPrompt":"What's the current crypto Fear & Greed Index score and has sentiment been trending more fearful or greedy this week?","exampleUseCases":null,"resultDescription":"Returns the current Fear & Greed Index score on a 0-100 scale (0=extreme fear, 100=extreme greed), a sentiment classification label, and a weekly trend indicating whether market sentiment is improving or deteriorating.","failureModes":["Empty or malformed request body may return 400 error","Upstream data source unavailability may return 503 or stale data","Payment not processed correctly may return 402 Payment Required"],"whenToPreferThis":"Use this endpoint when you need a quick, single-call snapshot of overall crypto market sentiment using the widely-recognized Fear & Greed Index metric, especially for contrarian trading signals or market timing analysis. Prefer this over raw price data endpoints when you want a synthesized sentiment score rather than individual asset metrics.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T12:43:52.929Z","isFirstParty":false}